
Biography
William Joseph Devane is an American actor. He is known for his role as Greg Sumner on the primetime soap opera Knots Landing (1983–1993) and as James Heller on the Fox serial dramas 24 (2005–2007) and 24: Live Another Day (2014). He is also known for his work in films such as Family Plot (1976), Marathon Man (1976), Rolling Thunder (1977), Payback (1999), and Space Cowboys (2000).
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Filmography50+ titles

A Woman Named Jackie

Interstellar

The X-Files

The West Wing

Stargate SG-1

Murder C.O.D.

Bosch: Legacy

Psych

The Dark Knight Rises

24

NCIS

The Tonight Show Starring Johnny Carson

Revenge

The Million Dollar Rip-Off

Touched by an Angel

Marathon Man

Hawaii Five-O

Stargate: Continuum

McCabe & Mrs. Miller

Notes from the Underbelly

Jesse Stone: Sea Change

Jesse Stone: Thin Ice

Jesse Stone: Death in Paradise

Lois & Clark: The New Adventures of Superman

Knots Landing

Mannix

Jesse Stone: Benefit of the Doubt

Jesse Stone: No Remorse

Payback

Rolling Thunder

Family Plot

Ironside

The Grinder

50 to 1

Nightmare in Columbia County

Gunsmoke

Jesse Stone: Lost in Paradise

Report to the Commissioner

Truth

Jesse Stone: Innocents Lost

Space Cowboys

Testament

Monte Walsh

The Pursuit of Happiness

What About Brian

Race to Space

Hollow Man

Yanks

The Bad News Bears in Breaking Training

The Badge